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Researchers at the University of North Texas have created a new carbon fiber from plants that can replace common petroleum and coal-based products in wide range of goods including parts for cars, aircraft, electronics and sports equipment. The patent-pending carbon fiber also is stronger and lighter than similar products on the market.
The new carbon fiber is made from C-lignin, a linear polymer that was discovered by UNT Distinguished Research Professor Richard Dixon and Research Professor Fang Chen in 2012 and reported in the Proceedings of the National Academy of Sciences.
Lignin is the substance that makes plants woody and firm, and helps plants stand upright. C-lignin is found in high concentrations in the seed coats of plants including vanilla orchids and species of cactus.
The new carbon fiber was created in the laboratory of Dr. Nandika D'Souza, a joint professor in the departments of Mechanical and Energy Engineering and Materials Science and Engineering in UNT's College of Engineering. D'Souza and engineering doctoral student Mangesh Nar engineer low carbon footprint products using bioresources through the National Science Foundation's Partnerships for Innovation Program.
"Unlike carbon fiber made from other ligno-cellulose or lignin sources, C-lignin is ideal for creating naturally-sourced carbon fiber because C-lignin fibers are linear, and can be easily processed into carbon fiber with the same equipment often used to produce fossil-fuel based carbon fibers," D'Souza said.